Testing for Bacterial Contamination in Liquid Soap Products

Soaps are products used for cleaning, consisting of combinations of various substances. Nowadays, besides their cleansing properties, the ability of soap products to exhibit antibacterial properties is a preference for consumers. These products are considered as biocidal products because they are antibacterial. Companies producing antibacterial soaps need to obtain permissions from relevant ministries. In the application to the ministry, they need to conduct tests to demonstrate the effectiveness of the product against bacteria, as the product claims to be antibacterial. After obtaining positive results from the required tests, companies can license, produce, and sell their products. Our laboratory, accredited according to the current guidelines, performs the Evaluation of Bactericidal Activity analysis in accordance with the TS EN 1276 method.

With the TS EN 1276 method, we conduct tests on the following microorganisms in the Evaluation of Bactericidal Activity analysis:
• E. coli K12 NCTC 10538
• E. hirae ATCC 10541
• P. aeruginosa ATCC 15442
• S. aureus ATCC 6538

Soap products are generally rinsed off during use. In order to be considered effective against bacteria according to the conducted tests, it is necessary for the product to be at least 99.9% effective against bacteria. If the product is effective against bacteria, companies can include statements such as "Kills 99.9% of bacteria" or "Provides 99.9% protection against bacteria" on their product packaging.